BS IEC 61747-40-4:2015
$102.76
Liquid crystal display devices – Mechanical testing of display cover glass for mobile devices. Biaxial flexural strength (ring-on-ring)
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 22 |
IEC 61747-40-4:2015(E) is a mechanical performance testing procedure for cover glass used in electronic flat panel displays in mobile devices. This standard is focused on the measurement of as-received surface fracture load via biaxial flexure generated by ring-on-ring.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 5 | FOREWORD |
| 7 | INTRODUCTION |
| 8 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 3.1 Terms and definitions 3.2 Abbreviations |
| 9 | 4 General 5 Apparatus 5.1 Testing environment and pre-conditioning 5.2 Testing frame |
| 10 | Figures Figure 1 – Testing frame |
| 11 | 5.3 Test fixture and setup Figure 2 – Support assembly (side view, cross-section) Figure 3 – Support assembly (top view) |
| 12 | Figure 4 – Load assembly (side view, cross-section) Figure 5 – Load assembly (bottom view) |
| 13 | 5.4 Test fixture dimensions 5.5 Loading rate 6 Procedure 6.1 Safety 6.1.1 Hazard – Broken glass 6.1.2 Crush hazard – Only one person may operate the testing frame 6.1.3 Crush hazard – Take care when installing or removing a specimen |
| 14 | 6.1.4 Hazard – Press the emergency stop button when an unsafe condition is observed 6.1.5 Flying debris hazard – Ensure that specimens are installed correctly 6.1.6 Hazard – Protect control cables from damage or disconnection 6.2 Sample 6.3 Individual specimen |
| 15 | Figure 6 – Surface fracture originating from inside the load ring |
| 16 | 6.4 Complete the report Figure 7 – Surface fracture originating from underneath the load ring Figure 8 – Edge fracture originating from outside the load ring |
| 17 | 7 Calculations |
| 18 | 8 Reporting 8.1 Information to be reported for each test 8.2 Information to be made available upon request 9 Specifications Figure 9 – Example Weibull plot |
| 20 | Bibliography |
